Question

The type of soil is determined
by
​

Answer 1

Answer:

When soil scientists want to precisely determine soil type, they measure the percentage of sand, silt, and clay. They plot this information on a triangular diagram, with each size particle at one corner (figure 2). The soil type can then be determined from the location on the diagram.

Explanation:

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Answer 2

Answer:

topsoil

topsoilA soil profile is the complete set of soil layers. Each layer is called a horizon. Called the A horizon, the topsoil is usually the darkest layer of the soil because it has the highest proportion of organic material.

Explanation:

When soil scientists want to precisely determine soil type, they measure the percentage of sand, silt, and clay. They plot this information on a triangular diagram, with each size particle at one corner (figure 2). The soil type can then be determined from the location on the diagram.